src/gtk/textctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/textctrl.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling, Vadim Zeitlin, 2005 Mart Raudsepp
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #if wxUSE_TEXTCTRL
  14
  15 #include "wx/textctrl.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/intl.h"
  19     #include "wx/log.h"
  20     #include "wx/utils.h"
  21     #include "wx/settings.h"
  22     #include "wx/math.h"
  23 #endif
  24
  25 #include "wx/strconv.h"
  26 #include "wx/fontutil.h"        // for wxNativeFontInfo (GetNativeFontInfo())
  27
  28 #include <sys/types.h>
  29 #include <sys/stat.h>
  30 #include <ctype.h>
  31
  32 #include "wx/gtk/private.h"
  33
  34 // ----------------------------------------------------------------------------
  35 // helpers
  36 // ----------------------------------------------------------------------------
  37
  38 extern "C" {
  39 static void wxGtkOnRemoveTag(GtkTextBuffer *buffer,
  40                              GtkTextTag *tag,
  41                              GtkTextIter *start,
  42                              GtkTextIter *end,
  43                              char *prefix)
  44 {
  45     gchar *name;
  46     g_object_get (tag, "name", &name, NULL);
  47
  48     if (!name || strncmp(name, prefix, strlen(prefix)))
  49         // anonymous tag or not starting with prefix - don't remove
  50         g_signal_stop_emission_by_name (buffer, "remove_tag");
  51
  52     g_free(name);
  53 }
  54 }
  55
  56 // remove all tags starting with the given prefix from the start..end range
  57 static void
  58 wxGtkTextRemoveTagsWithPrefix(GtkTextBuffer *text_buffer,
  59                               const char *prefix,
  60                               GtkTextIter *start,
  61                               GtkTextIter *end)
  62 {
  63     gulong remove_handler_id = g_signal_connect
  64                                (
  65                                 text_buffer,
  66                                 "remove_tag",
  67                                 G_CALLBACK(wxGtkOnRemoveTag),
  68                                 gpointer(prefix)
  69                                );
  70     gtk_text_buffer_remove_all_tags(text_buffer, start, end);
  71     g_signal_handler_disconnect(text_buffer, remove_handler_id);
  72 }
  73
  74 static void wxGtkTextApplyTagsFromAttr(GtkWidget *text,
  75                                        GtkTextBuffer *text_buffer,
  76                                        const wxTextAttr& attr,
  77                                        GtkTextIter *start,
  78                                        GtkTextIter *end)
  79 {
  80     static gchar buf[1024];
  81     GtkTextTag *tag;
  82
  83     if (attr.HasFont())
  84     {
  85         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXFONT", start, end);
  86
  87         PangoFontDescription *font_description = attr.GetFont().GetNativeFontInfo()->description;
  88         wxGtkString font_string(pango_font_description_to_string(font_description));
  89         g_snprintf(buf, sizeof(buf), "WXFONT %s", font_string.c_str());
  90         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
  91                                          buf );
  92         if (!tag)
  93             tag = gtk_text_buffer_create_tag( text_buffer, buf,
  94                                               "font-desc", font_description,
  95                                               NULL );
  96         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
  97
  98         if (attr.GetFont().GetUnderlined())
  99         {
 100             g_snprintf(buf, sizeof(buf), "WXFONTUNDERLINE");
 101             tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 102                                              buf );
 103             if (!tag)
 104                 tag = gtk_text_buffer_create_tag( text_buffer, buf,
 105                                                   "underline-set", TRUE,
 106                                                   "underline", PANGO_UNDERLINE_SINGLE,
 107                                                   NULL );
 108             gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 109         }
 110     }
 111
 112     if (attr.HasTextColour())
 113     {
 114         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXFORECOLOR", start, end);
 115
 116         const GdkColor *colFg = attr.GetTextColour().GetColor();
 117         g_snprintf(buf, sizeof(buf), "WXFORECOLOR %d %d %d",
 118                    colFg->red, colFg->green, colFg->blue);
 119         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 120                                          buf );
 121         if (!tag)
 122             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 123                                               "foreground-gdk", colFg, NULL );
 124         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 125     }
 126
 127     if (attr.HasBackgroundColour())
 128     {
 129         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXBACKCOLOR", start, end);
 130
 131         const GdkColor *colBg = attr.GetBackgroundColour().GetColor();
 132         g_snprintf(buf, sizeof(buf), "WXBACKCOLOR %d %d %d",
 133                    colBg->red, colBg->green, colBg->blue);
 134         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 135                                          buf );
 136         if (!tag)
 137             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 138                                               "background-gdk", colBg, NULL );
 139         gtk_text_buffer_apply_tag (text_buffer, tag, start, end);
 140     }
 141
 142     if (attr.HasAlignment())
 143     {
 144         GtkTextIter para_start, para_end = *end;
 145         gtk_text_buffer_get_iter_at_line( text_buffer,
 146                                           &para_start,
 147                                           gtk_text_iter_get_line(start) );
 148         gtk_text_iter_forward_line(&para_end);
 149
 150         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXALIGNMENT", start, end);
 151
 152         GtkJustification align;
 153         switch (attr.GetAlignment())
 154         {
 155             default:
 156                 align = GTK_JUSTIFY_LEFT;
 157                 break;
 158             case wxTEXT_ALIGNMENT_RIGHT:
 159                 align = GTK_JUSTIFY_RIGHT;
 160                 break;
 161             case wxTEXT_ALIGNMENT_CENTER:
 162                 align = GTK_JUSTIFY_CENTER;
 163                 break;
 164 // gtk+ doesn't support justify before gtk+-2.11.0 with pango-1.17 being available
 165 // (but if new enough pango isn't available it's a mere gtk warning)
 166 #if GTK_CHECK_VERSION(2,11,0)
 167             case wxTEXT_ALIGNMENT_JUSTIFIED:
 168                 if (!gtk_check_version(2,11,0))
 169                     align = GTK_JUSTIFY_FILL;
 170                 else
 171                     align = GTK_JUSTIFY_LEFT;
 172                 break;
 173 #endif
 174         }
 175
 176         g_snprintf(buf, sizeof(buf), "WXALIGNMENT %d", align);
 177         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 178                                          buf );
 179         if (!tag)
 180             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 181                                               "justification", align, NULL );
 182         gtk_text_buffer_apply_tag( text_buffer, tag, &para_start, &para_end );
 183     }
 184
 185     if (attr.HasLeftIndent())
 186     {
 187         // Indentation attribute
 188
 189         // Clear old indentation tags
 190         GtkTextIter para_start, para_end = *end;
 191         gtk_text_buffer_get_iter_at_line( text_buffer,
 192                                           &para_start,
 193                                           gtk_text_iter_get_line(start) );
 194         gtk_text_iter_forward_line(&para_end);
 195
 196         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXINDENT", start, end);
 197
 198         // Convert indent from 1/10th of a mm into pixels
 199         float factor;
 200 #if GTK_CHECK_VERSION(2,2,0)
 201         if (!gtk_check_version(2,2,0))
 202             factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
 203                       gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
 204         else
 205 #endif
 206             factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
 207
 208         const int indent = (int)(factor * attr.GetLeftIndent());
 209         const int subIndent = (int)(factor * attr.GetLeftSubIndent());
 210
 211         gint gindent;
 212         gint gsubindent;
 213
 214         if (subIndent >= 0)
 215         {
 216             gindent = indent;
 217             gsubindent = -subIndent;
 218         }
 219         else
 220         {
 221             gindent = -subIndent;
 222             gsubindent = indent;
 223         }
 224
 225         g_snprintf(buf, sizeof(buf), "WXINDENT %d %d", gindent, gsubindent);
 226         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 227                                         buf );
 228         if (!tag)
 229             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 230                                               "left-margin", gindent, "indent", gsubindent, NULL );
 231         gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
 232     }
 233
 234     if (attr.HasTabs())
 235     {
 236         // Set tab stops
 237
 238         // Clear old tabs
 239         GtkTextIter para_start, para_end = *end;
 240         gtk_text_buffer_get_iter_at_line( text_buffer,
 241                                           &para_start,
 242                                           gtk_text_iter_get_line(start) );
 243         gtk_text_iter_forward_line(&para_end);
 244
 245         wxGtkTextRemoveTagsWithPrefix(text_buffer, "WXTABS", start, end);
 246
 247         const wxArrayInt& tabs = attr.GetTabs();
 248
 249         wxString tagname = _T("WXTABS");
 250         g_snprintf(buf, sizeof(buf), "WXTABS");
 251         for (size_t i = 0; i < tabs.GetCount(); i++)
 252             tagname += wxString::Format(_T(" %d"), tabs[i]);
 253
 254         const wxWX2MBbuf buf = tagname.mb_str(wxConvUTF8);
 255
 256         tag = gtk_text_tag_table_lookup( gtk_text_buffer_get_tag_table( text_buffer ),
 257                                         buf );
 258         if (!tag)
 259         {
 260             // Factor to convert from 1/10th of a mm into pixels
 261             float factor;
 262 #if GTK_CHECK_VERSION(2,2,0)
 263             if (!gtk_check_version(2,2,0))
 264                 factor = (float)gdk_screen_get_width(gtk_widget_get_screen(text)) /
 265                           gdk_screen_get_width_mm(gtk_widget_get_screen(text)) / 10;
 266             else
 267 #endif
 268                 factor = (float)gdk_screen_width() / gdk_screen_width_mm() / 10;
 269
 270             PangoTabArray* tabArray = pango_tab_array_new(tabs.GetCount(), TRUE);
 271             for (size_t i = 0; i < tabs.GetCount(); i++)
 272                 pango_tab_array_set_tab(tabArray, i, PANGO_TAB_LEFT, (gint)(tabs[i] * factor));
 273             tag = gtk_text_buffer_create_tag( text_buffer, buf,
 274                                               "tabs", tabArray, NULL );
 275             pango_tab_array_free(tabArray);
 276         }
 277         gtk_text_buffer_apply_tag (text_buffer, tag, &para_start, &para_end);
 278     }
 279 }
 280
 281 static void wxGtkTextInsert(GtkWidget *text,
 282                             GtkTextBuffer *text_buffer,
 283                             const wxTextAttr& attr,
 284                             const wxCharBuffer& buffer)
 285
 286 {
 287     gint start_offset;
 288     GtkTextIter iter, start;
 289
 290     gtk_text_buffer_get_iter_at_mark( text_buffer, &iter,
 291                                      gtk_text_buffer_get_insert (text_buffer) );
 292     start_offset = gtk_text_iter_get_offset (&iter);
 293     gtk_text_buffer_insert( text_buffer, &iter, buffer, strlen(buffer) );
 294
 295     gtk_text_buffer_get_iter_at_offset (text_buffer, &start, start_offset);
 296
 297     wxGtkTextApplyTagsFromAttr(text, text_buffer, attr, &start, &iter);
 298 }
 299
 300 // ----------------------------------------------------------------------------
 301 // "insert_text" for GtkEntry
 302 // ----------------------------------------------------------------------------
 303
 304 extern "C" {
 305 static void
 306 gtk_insert_text_callback(GtkEditable *editable,
 307                          const gchar *new_text,
 308                          gint new_text_length,
 309                          gint *position,
 310                          wxTextCtrl *win)
 311 {
 312     // we should only be called if we have a max len limit at all
 313     GtkEntry *entry = GTK_ENTRY (editable);
 314
 315     wxCHECK_RET( entry->text_max_length, _T("shouldn't be called") );
 316
 317     // check that we don't overflow the max length limit
 318     //
 319     // FIXME: this doesn't work when we paste a string which is going to be
 320     //        truncated
 321     if ( entry->text_length == entry->text_max_length )
 322     {
 323         // we don't need to run the base class version at all
 324         g_signal_stop_emission_by_name (editable, "insert_text");
 325
 326         // remember that the next changed signal is to be ignored to avoid
 327         // generating a dummy wxEVT_COMMAND_TEXT_UPDATED event
 328         win->IgnoreNextTextUpdate();
 329
 330         // and generate the correct one ourselves
 331         wxCommandEvent event(wxEVT_COMMAND_TEXT_MAXLEN, win->GetId());
 332         event.SetEventObject(win);
 333         event.SetString(win->GetValue());
 334         win->GetEventHandler()->ProcessEvent( event );
 335     }
 336 }
 337 }
 338
 339 // Implementation of wxTE_AUTO_URL for wxGTK2 by Mart Raudsepp,
 340
 341 extern "C" {
 342 static void
 343 au_apply_tag_callback(GtkTextBuffer *buffer,
 344                       GtkTextTag *tag,
 345                       GtkTextIter *start,
 346                       GtkTextIter *end,
 347                       gpointer textctrl)
 348 {
 349     if(tag == gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl"))
 350         g_signal_stop_emission_by_name (buffer, "apply_tag");
 351 }
 352 }
 353
 354 //-----------------------------------------------------------------------------
 355 //  GtkTextCharPredicates for gtk_text_iter_*_find_char
 356 //-----------------------------------------------------------------------------
 357
 358 extern "C" {
 359 static gboolean
 360 pred_whitespace (gunichar ch, gpointer user_data)
 361 {
 362     return g_unichar_isspace(ch);
 363 }
 364 }
 365
 366 extern "C" {
 367 static gboolean
 368 pred_non_whitespace (gunichar ch, gpointer user_data)
 369 {
 370     return !g_unichar_isspace(ch);
 371 }
 372 }
 373
 374 extern "C" {
 375 static gboolean
 376 pred_nonpunct (gunichar ch, gpointer user_data)
 377 {
 378     return !g_unichar_ispunct(ch);
 379 }
 380 }
 381
 382 extern "C" {
 383 static gboolean
 384 pred_nonpunct_or_slash (gunichar ch, gpointer user_data)
 385 {
 386     return !g_unichar_ispunct(ch) || ch == '/';
 387 }
 388 }
 389
 390 //-----------------------------------------------------------------------------
 391 //  Check for links between s and e and correct tags as necessary
 392 //-----------------------------------------------------------------------------
 393
 394 // This function should be made match better while being efficient at one point.
 395 // Most probably with a row of regular expressions.
 396 extern "C" {
 397 static void
 398 au_check_word( GtkTextIter *s, GtkTextIter *e )
 399 {
 400     static const char *URIPrefixes[] =
 401     {
 402         "http://",
 403         "ftp://",
 404         "www.",
 405         "ftp.",
 406         "mailto://",
 407         "https://",
 408         "file://",
 409         "nntp://",
 410         "news://",
 411         "telnet://",
 412         "mms://",
 413         "gopher://",
 414         "prospero://",
 415         "wais://",
 416     };
 417
 418     GtkTextIter start = *s, end = *e;
 419     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 420
 421     // Get our special link tag
 422     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 423
 424     // Get rid of punctuation from beginning and end.
 425     // Might want to move this to au_check_range if an improved link checking doesn't
 426     // use some intelligent punctuation checking itself (beware of undesired iter modifications).
 427     if(g_unichar_ispunct( gtk_text_iter_get_char( &start ) ) )
 428         gtk_text_iter_forward_find_char( &start, pred_nonpunct, NULL, e );
 429
 430     gtk_text_iter_backward_find_char( &end, pred_nonpunct_or_slash, NULL, &start );
 431     gtk_text_iter_forward_char(&end);
 432
 433     wxGtkString text(gtk_text_iter_get_text( &start, &end ));
 434     size_t len = strlen(text), prefix_len;
 435     size_t n;
 436
 437     for( n = 0; n < WXSIZEOF(URIPrefixes); ++n )
 438     {
 439         prefix_len = strlen(URIPrefixes[n]);
 440         if((len > prefix_len) && !strncasecmp(text, URIPrefixes[n], prefix_len))
 441             break;
 442     }
 443
 444     if(n < WXSIZEOF(URIPrefixes))
 445     {
 446         gulong signal_id = g_signal_handler_find (buffer,
 447                                                   (GSignalMatchType) (G_SIGNAL_MATCH_FUNC),
 448                                                   0, 0, NULL,
 449                                                   (gpointer)au_apply_tag_callback, NULL);
 450
 451         g_signal_handler_block (buffer, signal_id);
 452         gtk_text_buffer_apply_tag(buffer, tag, &start, &end);
 453         g_signal_handler_unblock (buffer, signal_id);
 454     }
 455 }
 456 }
 457
 458 extern "C" {
 459 static void
 460 au_check_range(GtkTextIter *s,
 461                GtkTextIter *range_end)
 462 {
 463     GtkTextIter range_start = *s;
 464     GtkTextIter word_end;
 465     GtkTextBuffer *buffer = gtk_text_iter_get_buffer(s);
 466     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(buffer), "wxUrl");
 467
 468     gtk_text_buffer_remove_tag(buffer, tag, s, range_end);
 469
 470     if(g_unichar_isspace(gtk_text_iter_get_char(&range_start)))
 471         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 472
 473     while(!gtk_text_iter_equal(&range_start, range_end))
 474     {
 475         word_end = range_start;
 476         gtk_text_iter_forward_find_char(&word_end, pred_whitespace, NULL, range_end);
 477
 478         // Now we should have a word delimited by range_start and word_end, correct link tags
 479         au_check_word(&range_start, &word_end);
 480
 481         range_start = word_end;
 482         gtk_text_iter_forward_find_char(&range_start, pred_non_whitespace, NULL, range_end);
 483     }
 484 }
 485 }
 486
 487 //-----------------------------------------------------------------------------
 488 //  "insert-text" for GtkTextBuffer
 489 //-----------------------------------------------------------------------------
 490
 491 extern "C" {
 492 static void
 493 au_insert_text_callback(GtkTextBuffer *buffer,
 494                         GtkTextIter *end,
 495                         gchar *text,
 496                         gint len,
 497                         wxTextCtrl *win)
 498 {
 499     if (!len || !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 500         return;
 501
 502     GtkTextIter start = *end;
 503     gtk_text_iter_backward_chars(&start, g_utf8_strlen(text, len));
 504
 505     GtkTextIter line_start = start;
 506     GtkTextIter line_end = *end;
 507     GtkTextIter words_start = start;
 508     GtkTextIter words_end = *end;
 509
 510     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(&start));
 511     gtk_text_iter_forward_to_line_end(&line_end);
 512     gtk_text_iter_backward_find_char(&words_start, pred_whitespace, NULL, &line_start);
 513     gtk_text_iter_forward_find_char(&words_end, pred_whitespace, NULL, &line_end);
 514
 515     au_check_range(&words_start, &words_end);
 516 }
 517 }
 518
 519 //-----------------------------------------------------------------------------
 520 //  "delete-range" for GtkTextBuffer
 521 //-----------------------------------------------------------------------------
 522
 523 extern "C" {
 524 static void
 525 au_delete_range_callback(GtkTextBuffer *buffer,
 526                          GtkTextIter *start,
 527                          GtkTextIter *end,
 528                          wxTextCtrl *win)
 529 {
 530     if( !(win->GetWindowStyleFlag() & wxTE_AUTO_URL) )
 531         return;
 532
 533     GtkTextIter line_start = *start, line_end = *end;
 534
 535     gtk_text_iter_set_line(&line_start, gtk_text_iter_get_line(start));
 536     gtk_text_iter_forward_to_line_end(&line_end);
 537     gtk_text_iter_backward_find_char(start, pred_whitespace, NULL, &line_start);
 538     gtk_text_iter_forward_find_char(end, pred_whitespace, NULL, &line_end);
 539
 540     au_check_range(start, end);
 541 }
 542 }
 543
 544
 545 //-----------------------------------------------------------------------------
 546 //  "changed"
 547 //-----------------------------------------------------------------------------
 548
 549 extern "C" {
 550 static void
 551 gtk_text_changed_callback( GtkWidget *widget, wxTextCtrl *win )
 552 {
 553     if ( win->IgnoreTextUpdate() )
 554         return;
 555
 556     if (!win->m_hasVMT) return;
 557
 558     if ( win->MarkDirtyOnChange() )
 559         win->MarkDirty();
 560
 561     win->SendTextUpdatedEvent();
 562 }
 563 }
 564
 565 //-----------------------------------------------------------------------------
 566 //  clipboard events: "copy-clipboard", "cut-clipboard", "paste-clipboard"
 567 //-----------------------------------------------------------------------------
 568
 569 // common part of the event handlers below
 570 static void
 571 handle_text_clipboard_callback( GtkWidget *widget, wxTextCtrl *win,
 572                                 wxEventType eventType, const gchar * signal_name)
 573 {
 574     wxClipboardTextEvent event( eventType, win->GetId() );
 575     event.SetEventObject( win );
 576     if ( win->GetEventHandler()->ProcessEvent( event ) )
 577     {
 578         // don't let the default processing to take place if we did something
 579         // ourselves in the event handler
 580         g_signal_stop_emission_by_name (widget, signal_name);
 581     }
 582 }
 583
 584 extern "C" {
 585 static void
 586 gtk_copy_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 587 {
 588     handle_text_clipboard_callback(
 589         widget, win, wxEVT_COMMAND_TEXT_COPY, "copy-clipboard" );
 590 }
 591
 592 static void
 593 gtk_cut_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 594 {
 595     handle_text_clipboard_callback(
 596         widget, win, wxEVT_COMMAND_TEXT_CUT, "cut-clipboard" );
 597 }
 598
 599 static void
 600 gtk_paste_clipboard_callback( GtkWidget *widget, wxTextCtrl *win )
 601 {
 602     handle_text_clipboard_callback(
 603         widget, win, wxEVT_COMMAND_TEXT_PASTE, "paste-clipboard" );
 604 }
 605 }
 606
 607 //-----------------------------------------------------------------------------
 608 // "expose_event" from scrolled window and textview
 609 //-----------------------------------------------------------------------------
 610
 611 extern "C" {
 612 static gboolean
 613 gtk_text_exposed_callback( GtkWidget *widget, GdkEventExpose *event, wxTextCtrl *win )
 614 {
 615     return TRUE;
 616 }
 617 }
 618
 619
 620 //-----------------------------------------------------------------------------
 621 //  wxTextCtrl
 622 //-----------------------------------------------------------------------------
 623
 624 IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxTextCtrlBase)
 625
 626 BEGIN_EVENT_TABLE(wxTextCtrl, wxTextCtrlBase)
 627     EVT_CHAR(wxTextCtrl::OnChar)
 628
 629     EVT_MENU(wxID_CUT, wxTextCtrl::OnCut)
 630     EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy)
 631     EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste)
 632     EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo)
 633     EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo)
 634
 635     EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut)
 636     EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy)
 637     EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste)
 638     EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo)
 639     EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo)
 640
 641     // wxTE_AUTO_URL wxTextUrl support. Currently only creates
 642     // wxTextUrlEvent in the same cases as wxMSW, more can be added here.
 643     EVT_MOTION      (wxTextCtrl::OnUrlMouseEvent)
 644     EVT_LEFT_DOWN   (wxTextCtrl::OnUrlMouseEvent)
 645     EVT_LEFT_UP     (wxTextCtrl::OnUrlMouseEvent)
 646     EVT_LEFT_DCLICK (wxTextCtrl::OnUrlMouseEvent)
 647     EVT_RIGHT_DOWN  (wxTextCtrl::OnUrlMouseEvent)
 648     EVT_RIGHT_UP    (wxTextCtrl::OnUrlMouseEvent)
 649     EVT_RIGHT_DCLICK(wxTextCtrl::OnUrlMouseEvent)
 650 END_EVENT_TABLE()
 651
 652 void wxTextCtrl::Init()
 653 {
 654     m_dontMarkDirty =
 655     m_modified = false;
 656
 657     m_countUpdatesToIgnore = 0;
 658
 659     SetUpdateFont(false);
 660
 661     m_text = NULL;
 662     m_freezeCount = 0;
 663     m_showPositionOnThaw = NULL;
 664     m_gdkHandCursor = NULL;
 665     m_gdkXTermCursor = NULL;
 666 }
 667
 668 wxTextCtrl::~wxTextCtrl()
 669 {
 670     if(m_gdkHandCursor)
 671         gdk_cursor_unref(m_gdkHandCursor);
 672     if(m_gdkXTermCursor)
 673         gdk_cursor_unref(m_gdkXTermCursor);
 674 }
 675
 676 wxTextCtrl::wxTextCtrl( wxWindow *parent,
 677                         wxWindowID id,
 678                         const wxString &value,
 679                         const wxPoint &pos,
 680                         const wxSize &size,
 681                         long style,
 682                         const wxValidator& validator,
 683                         const wxString &name )
 684 {
 685     Init();
 686
 687     Create( parent, id, value, pos, size, style, validator, name );
 688 }
 689
 690 bool wxTextCtrl::Create( wxWindow *parent,
 691                          wxWindowID id,
 692                          const wxString &value,
 693                          const wxPoint &pos,
 694                          const wxSize &size,
 695                          long style,
 696                          const wxValidator& validator,
 697                          const wxString &name )
 698 {
 699     if (!PreCreation( parent, pos, size ) ||
 700         !CreateBase( parent, id, pos, size, style, validator, name ))
 701     {
 702         wxFAIL_MSG( wxT("wxTextCtrl creation failed") );
 703         return false;
 704     }
 705
 706     bool multi_line = (style & wxTE_MULTILINE) != 0;
 707
 708     if (multi_line)
 709     {
 710         // Create view
 711         m_text = gtk_text_view_new();
 712
 713         m_buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(m_text) );
 714
 715         // create "ShowPosition" marker
 716         GtkTextIter iter;
 717         gtk_text_buffer_get_start_iter(m_buffer, &iter);
 718         gtk_text_buffer_create_mark(m_buffer, "ShowPosition", &iter, true);
 719
 720         // create scrolled window
 721         m_widget = gtk_scrolled_window_new( NULL, NULL );
 722         gtk_scrolled_window_set_policy( GTK_SCROLLED_WINDOW( m_widget ),
 723                                         GTK_POLICY_AUTOMATIC,
 724                                         style & wxTE_NO_VSCROLL
 725                                             ? GTK_POLICY_NEVER
 726                                             : GTK_POLICY_AUTOMATIC );
 727         // for ScrollLines/Pages
 728         m_scrollBar[1] = (GtkRange*)((GtkScrolledWindow*)m_widget)->vscrollbar;
 729
 730         // Insert view into scrolled window
 731         gtk_container_add( GTK_CONTAINER(m_widget), m_text );
 732
 733         GTKSetWrapMode();
 734
 735         GtkScrolledWindowSetBorder(m_widget, style);
 736
 737         gtk_widget_add_events( GTK_WIDGET(m_text), GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK );
 738
 739         GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 740     }
 741     else
 742     {
 743         // a single-line text control: no need for scrollbars
 744         m_widget =
 745         m_text = gtk_entry_new();
 746
 747         if (style & wxNO_BORDER)
 748             g_object_set (m_text, "has-frame", FALSE, NULL);
 749     }
 750
 751     m_parent->DoAddChild( this );
 752
 753     m_focusWidget = m_text;
 754
 755     PostCreation(size);
 756
 757     if (multi_line)
 758     {
 759         gtk_widget_show(m_text);
 760     }
 761
 762     // We want to be notified about text changes.
 763     if (multi_line)
 764     {
 765         g_signal_connect (m_buffer, "changed",
 766                           G_CALLBACK (gtk_text_changed_callback), this);
 767     }
 768     else
 769     {
 770         g_signal_connect (m_text, "changed",
 771                           G_CALLBACK (gtk_text_changed_callback), this);
 772     }
 773
 774     if (!value.empty())
 775     {
 776         SetValue( value );
 777     }
 778
 779     if (style & wxTE_PASSWORD)
 780         GTKSetVisibility();
 781
 782     if (style & wxTE_READONLY)
 783         GTKSetEditable();
 784
 785     // left justification (alignment) is the default anyhow
 786     if ( style & (wxTE_RIGHT | wxTE_CENTRE) )
 787         GTKSetJustification();
 788
 789     if (multi_line)
 790     {
 791         // Handle URLs on multi-line controls with wxTE_AUTO_URL style
 792         if (style & wxTE_AUTO_URL)
 793         {
 794             GtkTextIter start, end;
 795             m_gdkHandCursor = gdk_cursor_new(GDK_HAND2);
 796             m_gdkXTermCursor = gdk_cursor_new(GDK_XTERM);
 797
 798             // We create our wxUrl tag here for slight efficiency gain - we
 799             // don't have to check for the tag existance in callbacks,
 800             // hereby it's guaranteed to exist.
 801             gtk_text_buffer_create_tag(m_buffer, "wxUrl",
 802                                        "foreground", "blue",
 803                                        "underline", PANGO_UNDERLINE_SINGLE,
 804                                        NULL);
 805
 806             // Check for URLs after each text change
 807             g_signal_connect_after (m_buffer, "insert_text",
 808                                     G_CALLBACK (au_insert_text_callback), this);
 809             g_signal_connect_after (m_buffer, "delete_range",
 810                                     G_CALLBACK (au_delete_range_callback), this);
 811
 812             // Block all wxUrl tag applying unless we do it ourselves, in which case we
 813             // block this callback temporarily. This takes care of gtk+ internal
 814             // gtk_text_buffer_insert_range* calls that would copy our URL tag otherwise,
 815             // which is undesired because only a part of the URL might be copied.
 816             // The insert-text signal emitted inside it will take care of newly formed
 817             // or wholly copied URLs.
 818             g_signal_connect (m_buffer, "apply_tag",
 819                               G_CALLBACK (au_apply_tag_callback), NULL);
 820
 821             // Check for URLs in the initial string passed to Create
 822             gtk_text_buffer_get_start_iter(m_buffer, &start);
 823             gtk_text_buffer_get_end_iter(m_buffer, &end);
 824             au_check_range(&start, &end);
 825         }
 826     }
 827
 828     g_signal_connect (m_text, "copy-clipboard",
 829                       G_CALLBACK (gtk_copy_clipboard_callback), this);
 830     g_signal_connect (m_text, "cut-clipboard",
 831                       G_CALLBACK (gtk_cut_clipboard_callback), this);
 832     g_signal_connect (m_text, "paste-clipboard",
 833                       G_CALLBACK (gtk_paste_clipboard_callback), this);
 834
 835     m_cursor = wxCursor( wxCURSOR_IBEAM );
 836
 837     return true;
 838 }
 839
 840 // ----------------------------------------------------------------------------
 841 // flags handling
 842 // ----------------------------------------------------------------------------
 843
 844 void wxTextCtrl::GTKSetEditable()
 845 {
 846     gboolean editable = !HasFlag(wxTE_READONLY);
 847     if ( IsSingleLine() )
 848         gtk_editable_set_editable(GTK_EDITABLE(m_text), editable);
 849     else
 850         gtk_text_view_set_editable(GTK_TEXT_VIEW(m_text), editable);
 851 }
 852
 853 void wxTextCtrl::GTKSetVisibility()
 854 {
 855     // VZ: shouldn't we assert if wxTE_PASSWORD is set for multiline control?
 856     if ( IsSingleLine() )
 857         gtk_entry_set_visibility(GTK_ENTRY(m_text), !HasFlag(wxTE_PASSWORD));
 858 }
 859
 860 void wxTextCtrl::GTKSetWrapMode()
 861 {
 862     // no wrapping in single line controls
 863     if ( !IsMultiLine() )
 864         return;
 865
 866     // translate wx wrapping style to GTK+
 867     GtkWrapMode wrap;
 868     if ( HasFlag( wxTE_DONTWRAP ) )
 869         wrap = GTK_WRAP_NONE;
 870     else if ( HasFlag( wxTE_CHARWRAP ) )
 871         wrap = GTK_WRAP_CHAR;
 872     else if ( HasFlag( wxTE_WORDWRAP ) )
 873         wrap = GTK_WRAP_WORD;
 874     else // HasFlag(wxTE_BESTWRAP) always true as wxTE_BESTWRAP == 0
 875     {
 876         // GTK_WRAP_WORD_CHAR seems to be new in GTK+ 2.4
 877 #ifdef __WXGTK24__
 878         if ( !gtk_check_version(2,4,0) )
 879         {
 880             wrap = GTK_WRAP_WORD_CHAR;
 881         }
 882         else
 883 #endif // __WXGTK24__
 884         wrap = GTK_WRAP_WORD;
 885     }
 886
 887     gtk_text_view_set_wrap_mode( GTK_TEXT_VIEW( m_text ), wrap );
 888 }
 889
 890 void wxTextCtrl::GTKSetJustification()
 891 {
 892     if ( IsMultiLine() )
 893     {
 894         GtkJustification just;
 895         if ( HasFlag(wxTE_RIGHT) )
 896             just = GTK_JUSTIFY_RIGHT;
 897         else if ( HasFlag(wxTE_CENTRE) )
 898             just = GTK_JUSTIFY_CENTER;
 899         else // wxTE_LEFT == 0
 900             just = GTK_JUSTIFY_LEFT;
 901
 902         gtk_text_view_set_justification(GTK_TEXT_VIEW(m_text), just);
 903     }
 904     else // single line
 905     {
 906 #ifdef __WXGTK24__
 907         // gtk_entry_set_alignment was introduced in gtk+-2.3.5
 908         if (!gtk_check_version(2,4,0))
 909         {
 910             gfloat align;
 911             if ( HasFlag(wxTE_RIGHT) )
 912                 align = 1.0;
 913             else if ( HasFlag(wxTE_CENTRE) )
 914                 align = 0.5;
 915             else // single line
 916                 align = 0.0;
 917
 918             gtk_entry_set_alignment(GTK_ENTRY(m_text), align);
 919         }
 920 #endif // __WXGTK24__
 921     }
 922
 923 }
 924
 925 void wxTextCtrl::SetWindowStyleFlag(long style)
 926 {
 927     long styleOld = GetWindowStyleFlag();
 928
 929     wxTextCtrlBase::SetWindowStyleFlag(style);
 930
 931     if ( (style & wxTE_READONLY) != (styleOld & wxTE_READONLY) )
 932         GTKSetEditable();
 933
 934     if ( (style & wxTE_PASSWORD) != (styleOld & wxTE_PASSWORD) )
 935         GTKSetVisibility();
 936
 937     static const long flagsWrap = wxTE_WORDWRAP | wxTE_CHARWRAP | wxTE_DONTWRAP;
 938     if ( (style & flagsWrap) != (styleOld & flagsWrap) )
 939         GTKSetWrapMode();
 940
 941     static const long flagsAlign = wxTE_LEFT | wxTE_CENTRE | wxTE_RIGHT;
 942     if ( (style & flagsAlign) != (styleOld & flagsAlign) )
 943         GTKSetJustification();
 944 }
 945
 946 // ----------------------------------------------------------------------------
 947 // control value
 948 // ----------------------------------------------------------------------------
 949
 950 wxString wxTextCtrl::GetValue() const
 951 {
 952     wxCHECK_MSG( m_text != NULL, wxEmptyString, wxT("invalid text ctrl") );
 953
 954     wxString tmp;
 955     if ( IsMultiLine() )
 956     {
 957         GtkTextIter start;
 958         gtk_text_buffer_get_start_iter( m_buffer, &start );
 959         GtkTextIter end;
 960         gtk_text_buffer_get_end_iter( m_buffer, &end );
 961         wxGtkString text(gtk_text_buffer_get_text(m_buffer, &start, &end, true));
 962
 963         return wxGTK_CONV_BACK(text);
 964     }
 965     else
 966     {
 967         const gchar *text = gtk_entry_get_text( GTK_ENTRY(m_text) );
 968         return wxGTK_CONV_BACK(text);
 969     }
 970
 971     return tmp;
 972 }
 973
 974 wxFontEncoding wxTextCtrl::GetTextEncoding() const
 975 {
 976     // GTK+ uses UTF-8 internally, we need to convert to it but from which
 977     // encoding?
 978
 979     // first check the default text style (we intentionally don't check the
 980     // style for the current position as it doesn't make sense for SetValue())
 981     const wxTextAttr& style = GetDefaultStyle();
 982     wxFontEncoding enc = style.HasFont() ? style.GetFont().GetEncoding()
 983                                          : wxFONTENCODING_SYSTEM;
 984
 985     // fall back to the controls font if no style
 986     if ( enc == wxFONTENCODING_SYSTEM && m_hasFont )
 987         enc = GetFont().GetEncoding();
 988
 989     return enc;
 990 }
 991
 992 bool wxTextCtrl::IsEmpty() const
 993 {
 994     if ( IsMultiLine() )
 995         return gtk_text_buffer_get_char_count(m_buffer) == 0;
 996
 997     return wxTextCtrlBase::IsEmpty();
 998 }
 999
1000 void wxTextCtrl::DoSetValue( const wxString &value, int flags )
1001 {
1002     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1003
1004     m_modified = false;
1005
1006     wxFontEncoding enc = m_defaultStyle.HasFont()
1007                             ? m_defaultStyle.GetFont().GetEncoding()
1008                             : wxFONTENCODING_SYSTEM;
1009     if ( enc == wxFONTENCODING_SYSTEM )
1010         enc = GetTextEncoding();
1011
1012     const wxCharBuffer buffer(wxGTK_CONV_ENC(value, enc));
1013     if ( !buffer )
1014     {
1015         // see comment in WriteText() as to why we must warn the user about
1016         // this
1017         wxLogWarning(_("Failed to set text in the text control."));
1018         return;
1019     }
1020
1021     void* blockWidget = IsMultiLine() ? (void*)m_buffer : (void*)m_text;
1022     g_signal_handlers_block_by_func(blockWidget,
1023         (gpointer)gtk_text_changed_callback, this);
1024     if ( IsMultiLine() )
1025     {
1026         gtk_text_buffer_set_text( m_buffer, buffer, strlen(buffer) );
1027
1028         if ( !m_defaultStyle.IsDefault() )
1029         {
1030             GtkTextIter start, end;
1031             gtk_text_buffer_get_bounds( m_buffer, &start, &end );
1032             wxGtkTextApplyTagsFromAttr(m_widget, m_buffer, m_defaultStyle,
1033                                        &start, &end);
1034         }
1035     }
1036     else
1037     {
1038         gtk_entry_set_text( GTK_ENTRY(m_text), buffer );
1039     }
1040     g_signal_handlers_unblock_by_func(blockWidget,
1041         (gpointer)gtk_text_changed_callback, this);
1042
1043     // This was added after discussion on the list
1044     SetInsertionPoint(0);
1045 }
1046
1047 void wxTextCtrl::WriteText( const wxString &text )
1048 {
1049     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1050
1051     if ( text.empty() )
1052         return;
1053
1054     // check if we have a specific style for the current position
1055     wxFontEncoding enc = wxFONTENCODING_SYSTEM;
1056     wxTextAttr style;
1057     if ( GetStyle(GetInsertionPoint(), style) && style.HasFont() )
1058     {
1059         enc = style.GetFont().GetEncoding();
1060     }
1061
1062     if ( enc == wxFONTENCODING_SYSTEM )
1063         enc = GetTextEncoding();
1064
1065     const wxCharBuffer buffer(wxGTK_CONV_ENC(text, enc));
1066     if ( !buffer )
1067     {
1068         // we must log an error here as losing the text like this can be a
1069         // serious problem (e.g. imagine the document edited by user being
1070         // empty instead of containing the correct text)
1071         wxLogWarning(_("Failed to insert text in the control."));
1072         return;
1073     }
1074
1075     // we're changing the text programmatically
1076     DontMarkDirtyOnNextChange();
1077
1078     if ( IsMultiLine() )
1079     {
1080         // First remove the selection if there is one
1081         // TODO:  Is there an easier GTK specific way to do this?
1082         long from, to;
1083         GetSelection(&from, &to);
1084         if (from != to)
1085             Remove(from, to);
1086
1087         // Insert the text
1088         wxGtkTextInsert( m_text, m_buffer, m_defaultStyle, buffer );
1089
1090         GtkAdjustment *adj = gtk_scrolled_window_get_vadjustment( GTK_SCROLLED_WINDOW(m_widget) );
1091         // Scroll to cursor, but only if scrollbar thumb is at the very bottom
1092         // won't work when frozen, text view is not using m_buffer then
1093         if (!IsFrozen() && wxIsSameDouble(adj->value, adj->upper - adj->page_size))
1094         {
1095             gtk_text_view_scroll_to_mark( GTK_TEXT_VIEW(m_text),
1096                     gtk_text_buffer_get_insert( m_buffer ), 0.0, FALSE, 0.0, 1.0 );
1097         }
1098     }
1099     else // single line
1100     {
1101         // First remove the selection if there is one
1102         gtk_editable_delete_selection( GTK_EDITABLE(m_text) );
1103
1104         // This moves the cursor pos to behind the inserted text.
1105         gint len = gtk_editable_get_position(GTK_EDITABLE(m_text));
1106
1107         gtk_editable_insert_text( GTK_EDITABLE(m_text), buffer, strlen(buffer), &len );
1108
1109         // Bring entry's cursor uptodate.
1110         gtk_editable_set_position( GTK_EDITABLE(m_text), len );
1111     }
1112 }
1113
1114 void wxTextCtrl::AppendText( const wxString &text )
1115 {
1116     SetInsertionPointEnd();
1117     WriteText( text );
1118 }
1119
1120 wxString wxTextCtrl::GetLineText( long lineNo ) const
1121 {
1122     wxString result;
1123     if ( IsMultiLine() )
1124     {
1125         GtkTextIter line;
1126         gtk_text_buffer_get_iter_at_line(m_buffer,&line,lineNo);
1127
1128         GtkTextIter end = line;
1129         // avoid skipping to the next line end if this one is empty
1130         if ( !gtk_text_iter_ends_line(&line) )
1131             gtk_text_iter_forward_to_line_end(&end);
1132
1133         wxGtkString text(gtk_text_buffer_get_text(m_buffer, &line, &end, true));
1134         result = wxGTK_CONV_BACK(text);
1135     }
1136     else
1137     {
1138         if (lineNo == 0)
1139             result = GetValue();
1140     }
1141     return result;
1142 }
1143
1144 void wxTextCtrl::OnDropFiles( wxDropFilesEvent &WXUNUSED(event) )
1145 {
1146   /* If you implement this, don't forget to update the documentation!
1147    * (file docs/latex/wx/text.tex) */
1148     wxFAIL_MSG( wxT("wxTextCtrl::OnDropFiles not implemented") );
1149 }
1150
1151 bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
1152 {
1153     if ( IsMultiLine() )
1154     {
1155         GtkTextIter iter;
1156
1157         if (pos > GetLastPosition())
1158             return false;
1159
1160         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, pos);
1161
1162         if ( y )
1163             *y = gtk_text_iter_get_line(&iter);
1164         if ( x )
1165             *x = gtk_text_iter_get_line_offset(&iter);
1166     }
1167     else // single line control
1168     {
1169         if ( pos <= GTK_ENTRY(m_text)->text_length )
1170         {
1171             if ( y )
1172                 *y = 0;
1173             if ( x )
1174                 *x = pos;
1175         }
1176         else
1177         {
1178             // index out of bounds
1179             return false;
1180         }
1181     }
1182
1183     return true;
1184 }
1185
1186 long wxTextCtrl::XYToPosition(long x, long y ) const
1187 {
1188     if ( IsSingleLine() )
1189         return 0;
1190
1191     GtkTextIter iter;
1192     if (y >= gtk_text_buffer_get_line_count (m_buffer))
1193         return -1;
1194
1195     gtk_text_buffer_get_iter_at_line(m_buffer, &iter, y);
1196     if (x >= gtk_text_iter_get_chars_in_line (&iter))
1197         return -1;
1198
1199     return gtk_text_iter_get_offset(&iter) + x;
1200 }
1201
1202 int wxTextCtrl::GetLineLength(long lineNo) const
1203 {
1204     if ( IsMultiLine() )
1205     {
1206         int last_line = gtk_text_buffer_get_line_count( m_buffer ) - 1;
1207         if (lineNo > last_line)
1208             return -1;
1209
1210         GtkTextIter iter;
1211         gtk_text_buffer_get_iter_at_line(m_buffer, &iter, lineNo);
1212         // get_chars_in_line return includes paragraph delimiters, so need to subtract 1 IF it is not the last line
1213         return gtk_text_iter_get_chars_in_line(&iter) - ((lineNo == last_line) ? 0 : 1);
1214     }
1215     else
1216     {
1217         wxString str = GetLineText (lineNo);
1218         return (int) str.length();
1219     }
1220 }
1221
1222 int wxTextCtrl::GetNumberOfLines() const
1223 {
1224     if ( IsMultiLine() )
1225     {
1226         return gtk_text_buffer_get_line_count( m_buffer );
1227     }
1228     else // single line
1229     {
1230         return 1;
1231     }
1232 }
1233
1234 void wxTextCtrl::SetInsertionPoint( long pos )
1235 {
1236     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1237
1238     if ( IsMultiLine() )
1239     {
1240         GtkTextIter iter;
1241         gtk_text_buffer_get_iter_at_offset( m_buffer, &iter, pos );
1242         gtk_text_buffer_place_cursor( m_buffer, &iter );
1243         GtkTextMark* mark = gtk_text_buffer_get_insert(m_buffer);
1244         if (IsFrozen())
1245             // defer until Thaw, text view is not using m_buffer now
1246             m_showPositionOnThaw = mark;
1247         else
1248             gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1249     }
1250     else
1251     {
1252         // FIXME: Is the editable's cursor really uptodate without double set_position in GTK2?
1253         gtk_editable_set_position(GTK_EDITABLE(m_text), int(pos));
1254     }
1255 }
1256
1257 void wxTextCtrl::SetInsertionPointEnd()
1258 {
1259     SetInsertionPoint(-1);
1260 }
1261
1262 void wxTextCtrl::SetEditable( bool editable )
1263 {
1264     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1265
1266     if ( IsMultiLine() )
1267     {
1268         gtk_text_view_set_editable( GTK_TEXT_VIEW(m_text), editable );
1269     }
1270     else
1271     {
1272         gtk_editable_set_editable( GTK_EDITABLE(m_text), editable );
1273     }
1274 }
1275
1276 bool wxTextCtrl::Enable( bool enable )
1277 {
1278     if (!wxWindowBase::Enable(enable))
1279     {
1280         // nothing to do
1281         return false;
1282     }
1283
1284     gtk_widget_set_sensitive( m_text, enable );
1285
1286     return true;
1287 }
1288
1289 // wxGTK-specific: called recursively by Enable,
1290 // to give widgets an opportunity to correct their colours after they
1291 // have been changed by Enable
1292 void wxTextCtrl::OnEnabled( bool enable )
1293 {
1294     // If we have a custom background colour, we use this colour in both
1295     // disabled and enabled mode, or we end up with a different colour under the
1296     // text.
1297     wxColour oldColour = GetBackgroundColour();
1298     if (oldColour.Ok())
1299     {
1300         // Need to set twice or it'll optimize the useful stuff out
1301         if (oldColour == * wxWHITE)
1302             SetBackgroundColour(*wxBLACK);
1303         else
1304             SetBackgroundColour(*wxWHITE);
1305         SetBackgroundColour(oldColour);
1306     }
1307 }
1308
1309 void wxTextCtrl::MarkDirty()
1310 {
1311     m_modified = true;
1312 }
1313
1314 void wxTextCtrl::DiscardEdits()
1315 {
1316     m_modified = false;
1317 }
1318
1319 // ----------------------------------------------------------------------------
1320 // max text length support
1321 // ----------------------------------------------------------------------------
1322
1323 bool wxTextCtrl::IgnoreTextUpdate()
1324 {
1325     if ( m_countUpdatesToIgnore > 0 )
1326     {
1327         m_countUpdatesToIgnore--;
1328
1329         return true;
1330     }
1331
1332     return false;
1333 }
1334
1335 bool wxTextCtrl::MarkDirtyOnChange()
1336 {
1337     if ( m_dontMarkDirty )
1338     {
1339         m_dontMarkDirty = false;
1340
1341         return false;
1342     }
1343
1344     return true;
1345 }
1346
1347 void wxTextCtrl::SetMaxLength(unsigned long len)
1348 {
1349     if ( !HasFlag(wxTE_MULTILINE) )
1350     {
1351         gtk_entry_set_max_length(GTK_ENTRY(m_text), len);
1352
1353         // there is a bug in GTK+ 1.2.x: "changed" signal is emitted even if
1354         // we had tried to enter more text than allowed by max text length and
1355         // the text wasn't really changed
1356         //
1357         // to detect this and generate TEXT_MAXLEN event instead of
1358         // TEXT_CHANGED one in this case we also catch "insert_text" signal
1359         //
1360         // when max len is set to 0 we disconnect our handler as it means that
1361         // we shouldn't check anything any more
1362         if ( len )
1363         {
1364             g_signal_connect (m_text, "insert_text",
1365                               G_CALLBACK (gtk_insert_text_callback), this);
1366         }
1367         else // no checking
1368         {
1369             g_signal_handlers_disconnect_by_func (m_text,
1370                     (gpointer) gtk_insert_text_callback, this);
1371         }
1372     }
1373 }
1374
1375 void wxTextCtrl::SetSelection( long from, long to )
1376 {
1377     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1378
1379     if (from == -1 && to == -1)
1380     {
1381         from = 0;
1382         to = GetValue().length();
1383     }
1384
1385     if ( IsMultiLine() )
1386     {
1387         GtkTextIter fromi, toi;
1388         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1389         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1390
1391         gtk_text_buffer_place_cursor( m_buffer, &toi );
1392         gtk_text_buffer_move_mark_by_name( m_buffer, "selection_bound", &fromi );
1393     }
1394     else
1395     {
1396         gtk_editable_select_region( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1397     }
1398 }
1399
1400 void wxTextCtrl::ShowPosition( long pos )
1401 {
1402     if (IsMultiLine())
1403     {
1404         GtkTextIter iter;
1405         gtk_text_buffer_get_iter_at_offset(m_buffer, &iter, int(pos));
1406         GtkTextMark* mark = gtk_text_buffer_get_mark(m_buffer, "ShowPosition");
1407         gtk_text_buffer_move_mark(m_buffer, mark, &iter);
1408         if (IsFrozen())
1409             // defer until Thaw, text view is not using m_buffer now
1410             m_showPositionOnThaw = mark;
1411         else
1412             gtk_text_view_scroll_mark_onscreen(GTK_TEXT_VIEW(m_text), mark);
1413     }
1414 }
1415
1416 wxTextCtrlHitTestResult
1417 wxTextCtrl::HitTest(const wxPoint& pt, long *pos) const
1418 {
1419     if ( !IsMultiLine() )
1420     {
1421         // not supported
1422         return wxTE_HT_UNKNOWN;
1423     }
1424
1425     int x, y;
1426     gtk_text_view_window_to_buffer_coords
1427     (
1428         GTK_TEXT_VIEW(m_text),
1429         GTK_TEXT_WINDOW_TEXT,
1430         pt.x, pt.y,
1431         &x, &y
1432     );
1433
1434     GtkTextIter iter;
1435     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &iter, x, y);
1436     if ( pos )
1437         *pos = gtk_text_iter_get_offset(&iter);
1438
1439     return wxTE_HT_ON_TEXT;
1440 }
1441
1442 long wxTextCtrl::GetInsertionPoint() const
1443 {
1444     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1445
1446     if ( IsMultiLine() )
1447     {
1448         // There is no direct accessor for the cursor, but
1449         // internally, the cursor is the "mark" called
1450         // "insert" in the text view's btree structure.
1451
1452         GtkTextMark *mark = gtk_text_buffer_get_insert( m_buffer );
1453         GtkTextIter cursor;
1454         gtk_text_buffer_get_iter_at_mark( m_buffer, &cursor, mark );
1455
1456         return gtk_text_iter_get_offset( &cursor );
1457     }
1458     else
1459     {
1460         return (long) gtk_editable_get_position(GTK_EDITABLE(m_text));
1461     }
1462 }
1463
1464 wxTextPos wxTextCtrl::GetLastPosition() const
1465 {
1466     wxCHECK_MSG( m_text != NULL, 0, wxT("invalid text ctrl") );
1467
1468     int pos = 0;
1469
1470     if ( IsMultiLine() )
1471     {
1472         GtkTextIter end;
1473         gtk_text_buffer_get_end_iter( m_buffer, &end );
1474
1475         pos = gtk_text_iter_get_offset( &end );
1476     }
1477     else
1478     {
1479         pos = GTK_ENTRY(m_text)->text_length;
1480     }
1481
1482     return (long)pos;
1483 }
1484
1485 void wxTextCtrl::Remove( long from, long to )
1486 {
1487     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1488
1489     if ( IsMultiLine() )
1490     {
1491         GtkTextIter fromi, toi;
1492         gtk_text_buffer_get_iter_at_offset( m_buffer, &fromi, from );
1493         gtk_text_buffer_get_iter_at_offset( m_buffer, &toi, to );
1494
1495         gtk_text_buffer_delete( m_buffer, &fromi, &toi );
1496     }
1497     else // single line
1498         gtk_editable_delete_text( GTK_EDITABLE(m_text), (gint)from, (gint)to );
1499 }
1500
1501 void wxTextCtrl::Replace( long from, long to, const wxString &value )
1502 {
1503     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1504
1505     Remove( from, to );
1506
1507     if (!value.empty())
1508     {
1509         SetInsertionPoint( from );
1510         WriteText( value );
1511     }
1512 }
1513
1514 void wxTextCtrl::Cut()
1515 {
1516     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1517
1518     if ( IsMultiLine() )
1519         g_signal_emit_by_name (m_text, "cut-clipboard");
1520     else
1521         gtk_editable_cut_clipboard(GTK_EDITABLE(m_text));
1522 }
1523
1524 void wxTextCtrl::Copy()
1525 {
1526     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1527
1528     if ( IsMultiLine() )
1529         g_signal_emit_by_name (m_text, "copy-clipboard");
1530     else
1531         gtk_editable_copy_clipboard(GTK_EDITABLE(m_text));
1532 }
1533
1534 void wxTextCtrl::Paste()
1535 {
1536     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1537
1538     if ( IsMultiLine() )
1539         g_signal_emit_by_name (m_text, "paste-clipboard");
1540     else
1541         gtk_editable_paste_clipboard(GTK_EDITABLE(m_text));
1542 }
1543
1544 // Undo/redo
1545 void wxTextCtrl::Undo()
1546 {
1547     // TODO
1548     wxFAIL_MSG( wxT("wxTextCtrl::Undo not implemented") );
1549 }
1550
1551 void wxTextCtrl::Redo()
1552 {
1553     // TODO
1554     wxFAIL_MSG( wxT("wxTextCtrl::Redo not implemented") );
1555 }
1556
1557 bool wxTextCtrl::CanUndo() const
1558 {
1559     // TODO
1560     //wxFAIL_MSG( wxT("wxTextCtrl::CanUndo not implemented") );
1561     return false;
1562 }
1563
1564 bool wxTextCtrl::CanRedo() const
1565 {
1566     // TODO
1567     //wxFAIL_MSG( wxT("wxTextCtrl::CanRedo not implemented") );
1568     return false;
1569 }
1570
1571 // If the return values from and to are the same, there is no
1572 // selection.
1573 void wxTextCtrl::GetSelection(long* fromOut, long* toOut) const
1574 {
1575     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1576
1577     gint from = -1;
1578     gint to = -1;
1579     bool haveSelection = false;
1580
1581      if ( IsMultiLine() )
1582      {
1583          GtkTextIter ifrom, ito;
1584          if ( gtk_text_buffer_get_selection_bounds(m_buffer, &ifrom, &ito) )
1585          {
1586              haveSelection = true;
1587              from = gtk_text_iter_get_offset(&ifrom);
1588              to = gtk_text_iter_get_offset(&ito);
1589          }
1590      }
1591      else  // not multi-line
1592      {
1593          if ( gtk_editable_get_selection_bounds( GTK_EDITABLE(m_text),
1594                                                  &from, &to) )
1595          {
1596              haveSelection = true;
1597          }
1598      }
1599
1600      if (! haveSelection )
1601           from = to = GetInsertionPoint();
1602
1603      if ( from > to )
1604      {
1605          // exchange them to be compatible with wxMSW
1606          gint tmp = from;
1607          from = to;
1608          to = tmp;
1609      }
1610
1611     if ( fromOut )
1612         *fromOut = from;
1613     if ( toOut )
1614         *toOut = to;
1615 }
1616
1617
1618 bool wxTextCtrl::IsEditable() const
1619 {
1620     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1621
1622     if ( IsMultiLine() )
1623     {
1624         return gtk_text_view_get_editable(GTK_TEXT_VIEW(m_text));
1625     }
1626     else
1627     {
1628         return gtk_editable_get_editable(GTK_EDITABLE(m_text));
1629     }
1630 }
1631
1632 bool wxTextCtrl::IsModified() const
1633 {
1634     return m_modified;
1635 }
1636
1637 void wxTextCtrl::Clear()
1638 {
1639     SetValue( wxEmptyString );
1640 }
1641
1642 void wxTextCtrl::OnChar( wxKeyEvent &key_event )
1643 {
1644     wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
1645
1646     if ( key_event.GetKeyCode() == WXK_RETURN )
1647     {
1648         if ( HasFlag(wxTE_PROCESS_ENTER) )
1649         {
1650             wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
1651             event.SetEventObject(this);
1652             event.SetString(GetValue());
1653             if ( GetEventHandler()->ProcessEvent(event) )
1654                 return;
1655         }
1656
1657         // FIXME: this is not the right place to do it, wxDialog::OnCharHook()
1658         //        probably is
1659         if ( IsSingleLine() )
1660         {
1661             // This will invoke the dialog default action, such
1662             // as the clicking the default button.
1663
1664             wxWindow *top_frame = m_parent;
1665             while (top_frame->GetParent() && !(top_frame->IsTopLevel()))
1666                 top_frame = top_frame->GetParent();
1667
1668             if (top_frame && GTK_IS_WINDOW(top_frame->m_widget))
1669             {
1670                 GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
1671
1672                 if (window->default_widget)
1673                 {
1674                     gtk_widget_activate (window->default_widget);
1675                     return;
1676                 }
1677             }
1678         }
1679     }
1680
1681     key_event.Skip();
1682 }
1683
1684 GtkWidget* wxTextCtrl::GetConnectWidget()
1685 {
1686     return GTK_WIDGET(m_text);
1687 }
1688
1689 GdkWindow *wxTextCtrl::GTKGetWindow(wxArrayGdkWindows& WXUNUSED(windows)) const
1690 {
1691     if ( IsMultiLine() )
1692     {
1693         return gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1694                                         GTK_TEXT_WINDOW_TEXT );
1695     }
1696     else
1697     {
1698         return GTK_ENTRY(m_text)->text_area;
1699     }
1700 }
1701
1702 // the font will change for subsequent text insertiongs
1703 bool wxTextCtrl::SetFont( const wxFont &font )
1704 {
1705     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1706
1707     if ( !wxTextCtrlBase::SetFont(font) )
1708     {
1709         // font didn't change, nothing to do
1710         return false;
1711     }
1712
1713     if ( IsMultiLine() )
1714     {
1715         SetUpdateFont(true);
1716
1717         m_defaultStyle.SetFont(font);
1718
1719         ChangeFontGlobally();
1720     }
1721
1722     return true;
1723 }
1724
1725 void wxTextCtrl::ChangeFontGlobally()
1726 {
1727     // this method is very inefficient and hence should be called as rarely as
1728     // possible!
1729     //
1730     // TODO: it can be implemented much more efficiently for GTK2
1731     wxASSERT_MSG( IsMultiLine(),
1732                   _T("shouldn't be called for single line controls") );
1733
1734     wxString value = GetValue();
1735     if ( !value.empty() )
1736     {
1737         SetUpdateFont(false);
1738
1739         Clear();
1740         AppendText(value);
1741     }
1742 }
1743
1744 bool wxTextCtrl::SetForegroundColour(const wxColour& colour)
1745 {
1746     if ( !wxControl::SetForegroundColour(colour) )
1747         return false;
1748
1749     // update default fg colour too
1750     m_defaultStyle.SetTextColour(colour);
1751
1752     return true;
1753 }
1754
1755 bool wxTextCtrl::SetBackgroundColour( const wxColour &colour )
1756 {
1757     wxCHECK_MSG( m_text != NULL, false, wxT("invalid text ctrl") );
1758
1759     if ( !wxControl::SetBackgroundColour( colour ) )
1760         return false;
1761
1762     if (!m_backgroundColour.Ok())
1763         return false;
1764
1765     // change active background color too
1766     m_defaultStyle.SetBackgroundColour( colour );
1767
1768     return true;
1769 }
1770
1771 bool wxTextCtrl::SetStyle( long start, long end, const wxTextAttr& style )
1772 {
1773     if ( IsMultiLine() )
1774     {
1775         if ( style.IsDefault() )
1776         {
1777             // nothing to do
1778             return true;
1779         }
1780
1781         gint l = gtk_text_buffer_get_char_count( m_buffer );
1782
1783         wxCHECK_MSG( start >= 0 && end <= l, false,
1784                      _T("invalid range in wxTextCtrl::SetStyle") );
1785
1786         GtkTextIter starti, endi;
1787         gtk_text_buffer_get_iter_at_offset( m_buffer, &starti, start );
1788         gtk_text_buffer_get_iter_at_offset( m_buffer, &endi, end );
1789
1790         wxGtkTextApplyTagsFromAttr( m_widget, m_buffer, style, &starti, &endi );
1791
1792         return true;
1793     }
1794     //else: single line text controls don't support styles
1795
1796     return false;
1797 }
1798
1799 void wxTextCtrl::DoApplyWidgetStyle(GtkRcStyle *style)
1800 {
1801     gtk_widget_modify_style(m_text, style);
1802 }
1803
1804 void wxTextCtrl::OnCut(wxCommandEvent& WXUNUSED(event))
1805 {
1806     Cut();
1807 }
1808
1809 void wxTextCtrl::OnCopy(wxCommandEvent& WXUNUSED(event))
1810 {
1811     Copy();
1812 }
1813
1814 void wxTextCtrl::OnPaste(wxCommandEvent& WXUNUSED(event))
1815 {
1816     Paste();
1817 }
1818
1819 void wxTextCtrl::OnUndo(wxCommandEvent& WXUNUSED(event))
1820 {
1821     Undo();
1822 }
1823
1824 void wxTextCtrl::OnRedo(wxCommandEvent& WXUNUSED(event))
1825 {
1826     Redo();
1827 }
1828
1829 void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event)
1830 {
1831     event.Enable( CanCut() );
1832 }
1833
1834 void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event)
1835 {
1836     event.Enable( CanCopy() );
1837 }
1838
1839 void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event)
1840 {
1841     event.Enable( CanPaste() );
1842 }
1843
1844 void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event)
1845 {
1846     event.Enable( CanUndo() );
1847 }
1848
1849 void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event)
1850 {
1851     event.Enable( CanRedo() );
1852 }
1853
1854 wxSize wxTextCtrl::DoGetBestSize() const
1855 {
1856     // FIXME should be different for multi-line controls...
1857     wxSize ret( wxControl::DoGetBestSize() );
1858     wxSize best(80, ret.y);
1859     CacheBestSize(best);
1860     return best;
1861 }
1862
1863 // ----------------------------------------------------------------------------
1864 // freeze/thaw
1865 // ----------------------------------------------------------------------------
1866
1867 void wxTextCtrl::Freeze()
1868 {
1869     wxCHECK_RET(m_text != NULL, wxT("invalid text ctrl"));
1870
1871     if ( HasFlag(wxTE_MULTILINE) )
1872     {
1873         if (m_freezeCount++ == 0)
1874         {
1875             // freeze textview updates and remove buffer
1876             g_signal_connect (m_text, "expose_event",
1877                               G_CALLBACK (gtk_text_exposed_callback), this);
1878             g_signal_connect (m_widget, "expose_event",
1879                               G_CALLBACK (gtk_text_exposed_callback), this);
1880             gtk_widget_set_sensitive(m_widget, false);
1881             g_object_ref(m_buffer);
1882             GtkTextBuffer* buf_new = gtk_text_buffer_new(NULL);
1883             GtkTextMark* mark = GTK_TEXT_VIEW(m_text)->first_para_mark;
1884             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), buf_new);
1885             // gtk_text_view_set_buffer adds its own reference
1886             g_object_unref(buf_new);
1887             // This mark should be deleted when the buffer is changed,
1888             // but it's not (in GTK+ up to at least 2.10.6).
1889             // Otherwise these anonymous marks start to build up in the buffer,
1890             // and Freeze takes longer and longer each time it is called.
1891             if (GTK_IS_TEXT_MARK(mark) && !gtk_text_mark_get_deleted(mark))
1892                 gtk_text_buffer_delete_mark(m_buffer, mark);
1893         }
1894     }
1895 }
1896
1897 void wxTextCtrl::Thaw()
1898 {
1899     if ( HasFlag(wxTE_MULTILINE) )
1900     {
1901         wxCHECK_RET(m_freezeCount != 0, _T("Thaw() without matching Freeze()"));
1902
1903         if (--m_freezeCount == 0)
1904         {
1905             // Reattach buffer and thaw textview updates
1906             gtk_text_view_set_buffer(GTK_TEXT_VIEW(m_text), m_buffer);
1907             g_object_unref(m_buffer);
1908             gtk_widget_set_sensitive(m_widget, true);
1909             g_signal_handlers_disconnect_by_func (m_widget,
1910                     (gpointer) gtk_text_exposed_callback, this);
1911             g_signal_handlers_disconnect_by_func (m_text,
1912                     (gpointer) gtk_text_exposed_callback, this);
1913             if (m_showPositionOnThaw != NULL)
1914             {
1915                 gtk_text_view_scroll_mark_onscreen(
1916                     GTK_TEXT_VIEW(m_text), m_showPositionOnThaw);
1917                 m_showPositionOnThaw = NULL;
1918             }
1919         }
1920     }
1921 }
1922
1923 // ----------------------------------------------------------------------------
1924 // wxTextUrlEvent passing if style & wxTE_AUTO_URL
1925 // ----------------------------------------------------------------------------
1926
1927 // FIXME: when dragging on a link the sample gets an "Unknown event".
1928 // This might be an excessive event from us or a buggy wxMouseEvent::Moving() or
1929 // a buggy sample, or something else
1930 void wxTextCtrl::OnUrlMouseEvent(wxMouseEvent& event)
1931 {
1932     event.Skip();
1933     if( !HasFlag(wxTE_AUTO_URL) )
1934         return;
1935
1936     gint x, y;
1937     GtkTextIter start, end;
1938     GtkTextTag *tag = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table(m_buffer),
1939                                                 "wxUrl");
1940
1941     gtk_text_view_window_to_buffer_coords(GTK_TEXT_VIEW(m_text), GTK_TEXT_WINDOW_WIDGET,
1942                                           event.GetX(), event.GetY(), &x, &y);
1943
1944     gtk_text_view_get_iter_at_location(GTK_TEXT_VIEW(m_text), &end, x, y);
1945     if (!gtk_text_iter_has_tag(&end, tag))
1946     {
1947         gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1948                               GTK_TEXT_WINDOW_TEXT), m_gdkXTermCursor);
1949         return;
1950     }
1951
1952     gdk_window_set_cursor(gtk_text_view_get_window(GTK_TEXT_VIEW(m_text),
1953                           GTK_TEXT_WINDOW_TEXT), m_gdkHandCursor);
1954
1955     start = end;
1956     if(!gtk_text_iter_begins_tag(&start, tag))
1957         gtk_text_iter_backward_to_tag_toggle(&start, tag);
1958     if(!gtk_text_iter_ends_tag(&end, tag))
1959         gtk_text_iter_forward_to_tag_toggle(&end, tag);
1960
1961     // Native context menu is probably not desired on an URL.
1962     // Consider making this dependant on ProcessEvent(wxTextUrlEvent) return value
1963     if(event.GetEventType() == wxEVT_RIGHT_DOWN)
1964         event.Skip(false);
1965
1966     wxTextUrlEvent url_event(m_windowId, event,
1967                              gtk_text_iter_get_offset(&start),
1968                              gtk_text_iter_get_offset(&end));
1969
1970     InitCommandEvent(url_event);
1971     // Is that a good idea? Seems not (pleasure with gtk_text_view_start_selection_drag)
1972     //event.Skip(!GetEventHandler()->ProcessEvent(url_event));
1973     GetEventHandler()->ProcessEvent(url_event);
1974 }
1975
1976 bool wxTextCtrl::GTKProcessEvent(wxEvent& event) const
1977 {
1978     bool rc = wxTextCtrlBase::GTKProcessEvent(event);
1979
1980     // GtkTextView starts a drag operation when left mouse button is pressed
1981     // and ends it when it is released and if it doesn't get the release event
1982     // the next click on a control results in an assertion failure inside
1983     // gtk_text_view_start_selection_drag() which simply *kills* the program
1984     // without anything we can do about it, so always let GTK+ have this event
1985     return rc && (IsSingleLine() || event.GetEventType() != wxEVT_LEFT_UP);
1986 }
1987
1988 // static
1989 wxVisualAttributes
1990 wxTextCtrl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
1991 {
1992     return GetDefaultAttributesFromGTKWidget(gtk_entry_new, true);
1993 }
1994
1995 #endif // wxUSE_TEXTCTRL